TDA8385 Datasheet, PDF (9/21 Pages) NXP Semiconductors – Control circuit for a Self-Oscillating Power Supply SOPS

Philips Semiconductors
Control circuit for a Self-Oscillating
Power Supply (SOPS)
handbook, full pagewidth
Ic
(1)
Preliminary specification
TDA8385
t
Vss
(1) For detail see Fig.10.
Fig.9 Over voltage protection.
t
MCD408
March 1994
VP
(V)
0
Vss
(V)
0
Ic
slow discharge
quick discharge
t _delay
Q _FF23
7.5 V
5.2 V
t
t
t
t
Fig.10 Detailed over voltage protection of Fig.9.
MCD409
10